I put together a button to test breaks while repacking bearings. A boat horn button a couple pieces of short wire and a couple of terminal ends. Forked screw down ends to connect to horn button and spade ends to insert in pigtail.

Jack a tire up just enough to it spins. Spin tire and have my son depress button. If brakes are working tire stops almost instantly. With longer wires you could do this yourself with no assistant, but we put this together while I was teaching him how to inspect and hand pack bearings.

I put together a button to test breaks while repacking bearings. A boat horn button a couple pieces of short wire and a couple of terminal ends. Forked screw down ends to connect to horn button and spade ends to insert in pigtail.

Jack a tire up just enough to it spins. Spin tire and have my son depress button. If brakes are working tire stops almost instantly. With longer wires you could do this yourself with no assistant, but we put this together while I was teaching him how to inspect and hand pack bearings.

I also use the button for checking lights.

Robert R

Thank you. That should be easy test. The unit has level 4.0 so getting tires off the ground is easy. Iíll give that a try. If they donít stop I guess the trick will be finding the issue or where the wire is loose

I like the idea of the test button, but just keep in mind that you're putting the full 12 volts to the magnets this way, so the brakes may appear to work, but could still have a problem.
I'd suggest that while testing,
1) note how fast and strong the stop appears and
2) try to manually turn the wheel while the button is being depressed.

If you can turn it by hand more than a tiny bit, then there's a problem.

The brakes may just need adjusting . i'm sure it's never done at the factory's and for sure dealers never touch them or test them . mine were a bit less then good before i adjusted them now my gain is between 2 and 5 . may have adjusted a bit to much but like that way they feel now . i turned out the adjusting screw till i could just hear a little scrapinng on the drum while i turned to wheel then backed off a bit .

The brakes may just need adjusting . i'm sure it's never done at the factory's and for sure dealers never touch them or test them . mine were a bit less then good before i adjusted them now my gain is between 2 and 5 . may have adjusted a bit to much but like that way they feel now . i turned out the adjusting screw till i could just hear a little scrapinng on the drum while i turned to wheel then backed off a bit .

I actually got a trailer wire fault warning when they went out. Gain is at 10 and 0 on output when I manually activate. Also sway is uncontrollable. They think maybe axle is out a couple degrees. The tires open up about 12 inches from flat to using level gear when tires still on the ground. The wheel chock has to be adjusted every time more than 12 inches. Axle should move that much and tires donít have that much flex in them. I guess the techs will check everything next week after the races